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command-line currency converter

Qalculate! is a multi-purpose desktop calculator for GNU/Linux (now ported to Mac). It is small and simple to use but with much power and versatility underneath. Features include customizable functions, units, arbitrary precision, plotting, and a user-friendly interface (KDE or GTK+).” (source)

The software has a command-line interface too that you can start with the command “qalc“. You can do all kinds of fancy math calculations with it, but this time I’m interested in currency conversions. Qalc supports it too:

$ qalc
You need the download exchange rates to be able to convert between different currencies.
You can later get current exchange rates with the "exchange rates" command.
Do you want to fetch exchange rates now from the Internet (default yes)? yes
> 50000 USD to HUF

  50000 * dollar = approx. HUF 12157958

>  USD to HUF

  dollar = approx. HUF 243.15915



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